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Optoelectronics/Displays??

Eval board for TPS92550 450mA 36V LED driver micro-module

Posted: 19 Sep 2012 ?? ?Print Version ?Bookmark and Share

Keywords:constant current? buck LED driver? Electro Magnetic Interference?

The TPS92550 constant current buck LED driver micro-module is touted to drive maximum 450mA LED current up to 10 LEDs in a single string (maximum 14W). It integrates all the power components including the power inductor. The TPS92550 provides a solution for wide range of single string LED lighting applications with up to 96% power efficiency. The TPS92550 accepts an input voltage ranging from 4.5V to 36V and delivers a highly accurate 350mA LED current as default. The LED current is adjustable from 300mA to 450mA by charging a single external resistor.

The module operates at constant switching frequency (400kHz) with low Electro Magnetic Interference (EMI) complying with EN55015 standard. The module has fast control loop to realize fine LED current pulse yielding 256Cstep PWM dimming resolution at 240Hz for general lighting. Protection features include thermal shutdown, input undervoltage lockout, LED open-circuit and short-circuit protections. The TPS92550 Micro-Module is available in TO-PMOD 7 pin power package.

View the PDF document for more information.

Originally published by Texas Instruments at www.ti.com as "TPS92550 450mA 36V LED Driver Micro-Module Evaluation Board".





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